BOSTON A judge has delayed ruling whether to grant bail for the longtime girlfriend of reputed former Boston crime boss James “Whitey” Bugler.

The decision came Wednesday at the end of an emotional two-day detention hearing for Catherine Greig. She is charged with harboring a fugitive after allegedly helping Bulger evade capture during the 16 years they were on the run together.

Greig’s lawyer told the judge his client would agree to be voluntarily held while he gathers more information to argue for her eventual release. Kevin Reddington said he wanted to submit a full background report through the court’s pretrial services division.

Earlier Wednesday, four relatives of Bulger’s alleged murder victims offered statements on behalf of the prosecution.

“We had impact statements from the families expressing their anger and contempt at the idea that Grieg, who, according to the government, helped Bulger along the way in all sorts of ways, would ever be able to make bail,” said WBUR’s David Boeri from U.S. District Court.